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Re: .def files for insn and reg notes
- From: Eric Botcazou <ebotcazou at libertysurf dot fr>
- To: Zack Weinberg <zack at codesourcery dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Mon, 20 Sep 2004 10:15:11 +0200
- Subject: Re: .def files for insn and reg notes
- References: <87d61onkqk.fsf@codesourcery.com>
> There appears to have been no good reason why the reg_note enumeration
> began at 1.
I just found it in print-rtl.c:
if (GET_MODE (in_rtx) != VOIDmode)
{
/* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
if (GET_CODE (in_rtx) == EXPR_LIST
|| GET_CODE (in_rtx) == INSN_LIST)
fprintf (outfile, ":%s",
GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
else
fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
}
REG_DEAD is now mapped to VOIDmode, which means that the patch has eliminated
all REG_DEAD notes from the RTL dumps:
(insn:HI 9509 9508 9507 0 (set (reg:DI 6214)
(ashift:DI (reg:DI 6213)
(const_int 32 [0x20]))) 303 {*ashldi3_sp64} (insn_list 9508
(insn_list:REG_DEP_ANTI 9503 (nil)))
(expr_list (reg:DI 6213)
(nil)))
Please bring them back! :-)
--
Eric Botcazou